package fr.free.movierenamer.mediainfo;

import com.sun.jna.*;
import java.lang.reflect.Method;
import static java.util.Collections.singletonMap;

public interface MediaInfoLibrary extends Library {

  MediaInfoLibrary INSTANCE = (MediaInfoLibrary) Native.loadLibrary("mediainfo", MediaInfoLibrary.class, singletonMap(OPTION_FUNCTION_MAPPER, new FunctionMapper() {

    @Override
    public String getFunctionName(NativeLibrary lib, Method method) {
      // MediaInfo_New(), MediaInfo_Open() ...
      return "MediaInfo_" + method.getName();
    }
  }));

  /**
   * Create a new handle.
   *
   * @return handle
   */
  Pointer New();

  /**
   * Open a file and collect information about it (technical information and tags).
   *
   * @param handle
   * @param file full name of the file to open
   * @return 1 if file was opened, 0 if file was not not opened
   */
  int Open(Pointer handle, WString file);

  /**
   * Configure or get information about MediaInfo.
   *
   * @param handle
   * @param option The name of option
   * @param value The value of option
   * @return Depends on the option: by default "" (nothing) means No, other means Yes
   */
  WString Option(Pointer handle, WString option, WString value);

  /**
   * Get all details about a file.
   *
   * @param handle
   * @return All details about a file in one string
   */
  WString Inform(Pointer handle);

  /**
   * Get a piece of information about a file (parameter is a string).
   *
   * @param handle
   * @param streamKind Kind of stream (general, video, audio...)
   * @param streamNumber Stream number in Kind of stream (first, second...)
   * @param parameter Parameter you are looking for in the stream (Codec, width, bitrate...), in string format ("Codec", "Width"...)
   * @param infoKind Kind of information you want about the parameter (the text, the measure, the help...)
   * @param searchKind Where to look for the parameter
   * @return a string about information you search, an empty string if there is a problem
   */
  WString Get(Pointer handle, int streamKind, int streamNumber, WString parameter, int infoKind, int searchKind);

  /**
   * Get a piece of information about a file (parameter is an integer).
   *
   * @param handle
   * @param streamKind Kind of stream (general, video, audio...)
   * @param streamNumber Stream number in Kind of stream (first, second...)
   * @param parameterIndex Parameter you are looking for in the stream (Codec, width, bitrate...), in integer format (first parameter, second parameter...)
   * @param infoKind Kind of information you want about the parameter (the text, the measure, the help...)
   * @return a string about information you search, an empty string if there is a problem
   */
  WString GetI(Pointer handle, int streamKind, int streamNumber, int parameterIndex, int infoKind);

  /**
   * Count of streams of a stream kind (StreamNumber not filled), or count of piece of information in this stream.
   *
   * @param handle
   * @param streamKind Kind of stream (general, video, audio...)
   * @param streamNumber Stream number in this kind of stream (first, second...)
   * @return number of streams of the given stream kind
   */
  int Count_Get(Pointer handle, int streamKind, int streamNumber);

  /**
   * Close a file opened before with Open().
   *
   * @param handle
   */
  void Close(Pointer handle);

  /**
   * Dispose of a handle created with New().
   *
   * @param handle
   */
  void Delete(Pointer handle);
}
